Finding the Fourth Proportional to 81,495,748.68, 112,453,925.49 and 55,091,552.78
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Solution
The fourth proportional to 81,495,748.68, 112,453,925.49 and 55,091,552.78 is: 76,019,442.39
Step by Step Solution
- Step 1: Write the proportion equation
81,495,748.68 : 112,453,925.49 = 55,091,552.78 : x - Step 2: Convert to fraction form
81,495,748.68/112,453,925.49 = 55,091,552.78/x - Step 3: Cross multiply
81,495,748.68x = 112,453,925.49 × 55,091,552.78 - Step 4: Simplify right side
81,495,748.68x = 6,195,261,371,169,388 - Step 5: Solve for x
x = 6,195,261,371,169,388/81,495,748.68 - Step 6: Final answer
x = 76,019,442.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.